Adding a `pscheduler metrics` command that output all the statistics available through the API.  It has 2 output format: json (default) and prometheus to be used with prometheus-node-exporter textfile exporter.
Adding a `pscheduler metrics` command that output all the statistics
available through the API.  It has 2 output format: json (default) and
prometheus to be used with prometheus-node-exporter textfile exporter.

perfsonar/pscheduler,perfsonar/pscheduler,perfsonar/pscheduler,perfsonar/pscheduler